I wanted to do some chemistry stuff, but I can't do it outside and I don't have a proper fume hood. Can I use my kitchen stove's exhaust as a fume hood?
>Pic related
Maybe if you isolate the area around it some more, maybe with plastic, so the vapors don't escape. I still wouldn't recommend it
>>8588617
Don't shit where you eat. Do it in a uni chemlab
>>8588645
this
why would you ever play with chemicals in the safe place you eat?
If you can't solve this you don't belong on this board.
Getting drunk and going snowmobiling on Christmas
Let's see if I can get this right.
The sum in the first limit converges to 2 and i^2 is just negative 1, which means snowflake = 11/48
The second equation requires you to solve for the candy cane when the integral is equal to zero, which is to find xln(x)-x from 11/48 to candy cane which occurs when candy cane is about 2.06611.
The third equation is trivial (if your notation means 23 choose 17) and is true when wineglass equals about 203.08.
Therefore the equation reads 2.06611 + 203.08(11/48) = 48.605
That should be about right unless I made a stupid mistake or misread the notation. Yes?
>>8588641
Fuck I'm retarded, I added the numbers in the first equation rather than multiplied them. It should be 1/3 instead of 11/48.
Why did we evolve these useless things
>Get two sets, if you lose the second set at all they will never come back.
>many animals can regrow their teeth but not humans for some reason
>Require autistic level maintenance or else they fall out rendering you unable to eat
>Come out crooked unless you use medical procedures that would have been around when we were evolving.
So much for survival of the fittest...
We live a lot longer than we used to - teeth used to be able to last 30 years, now need to last 90. Also, processed food and a lack of proper nutrition when developing leads to weak arches, which is a major reason they're jammed together and crooked. Plus processed sugar destroys them.
Read Weston Price.
>>8588461
dude if we still lived according to "that would have been around when we were evolving" we would die in our thirty year old with perfect teeth
>>8588471
WE DIDNT LIVE TO 30 BACK THEN FFFSSS
For example inverses in my head "undo" each other to get back the identity
(1/x) * (x) = 1
3x + 5 inverse is 1/3(x-5)
But cos inverse is arccos
How does that shit work?
arccos(cos(x)) does not equal x?
>>8588431
your first two inverses are inverses under multiplication
the function 1/x is certainly not the inverse of the function x. see, apply them both in any order and you just get 1/x.
inverses are like x^2 and sqrt(x). like so: (sqrt(x))^2 = x
so just like that, acos(cos(x)) = x
>>8588431
There are different kinds of inverse, brainlet.
>>8588447
please explain cause im dumb
is this solvable given the information?
>>8588418
6 days overdue, uh oh!!
> comic sans
>high school graduate (barely)
>work blue collar job after
>bounce around a bit, get job servicing a major tech companies equipment
>work my way up into service engineering
>at factory a few months ago supporting with problems on the line
>they give me an intern
>I have him pulling stuff apart so I can diagnose issues
>talk to him for a bit
>EE masters from Stanford
>29 years old
>so grateful for the internship because apparently only 50 people get them out of 80k applicants
>he's getting paid 25/hr, in the Bay Area where that doesn't even cover the cost of living
You STEM guys that are still in school do realize this is your future, right?
If I had a job in the bay area, I would live outside of the bay area and commute into the bay area from a small town where stuff is cheaper. Then preferably move to a place where COL is even cheaper when I am far enough up the chain to work from home.
>>8588334
People do this, but it's just not worth it. Going in each direction the cheap places to live are Santa Rosa (not that cheap), Vacaville/Fairfield, Tracy, Stockton, and Gilroy. The commute from any of these places onto the peninsula is 2 hours each way. If you count those 20 hours + of commute time into your hourly rate vs just living closer to work you'll probably be losing money. People do it so they can buy instead of rent but personally my time is too valuable to me to take on a commute like that. Add in traffic and sometimes you can get a 3-4 hour commute.
>living in California ever
Hi /sci/ MLfag here in there last year of highschool and planning on studying here: http://www.lth.se/english. I am wondering whether it is better to study Engineering Mathematics with programming courses or Computer Science and Engineering with Statistics courses in order to later research Machine Learning.
>>8588297
https://news.ycombinator.com/item?id=12720908
You would want computer science if you're going to do ML with a lot of Linear Algebra courses and statistics.
>>8588319
Cool anon, thanks for the help
>>8588297
do data science
it's pretty much the same thing but as a data scientist you can literally choose your wage.
I am not kidding, 300k starting is not obviously still unusual but not absurd in silicon valley
just saw Hidden Figures, its crazy to think that the space program only happened because of these 3 black women.
Katherine Johnson was a math genius, possibly above the level of Von Neumann and Grothendieck
>>8588150
>Katherine Johnson was a math genius, possibly above the level of Von Neumann and Grothendieck
I though I was the only one believing this.
Blacks have been unjustly ostracized in academia and institutions.
Slavery never really ended.
>>8588190
her accomplishments are no where near Von Neumann's
ITT: bait, very bad bait too, try harder
https://www.youtube.com/watch?v=Zcz0eL_bYsI
https://www.youtube.com/watch?v=EyEjlDZaqP8
>Apollotards will defend this
The last time a manned spacecraft supposedly landed on the moon was in 1972. It's been 45 years. Our technology is vastly superior now compared to what it was in 1972, it would be alot cheaper now, so why the fuck hasn't any country in the entire World sent a manned spacecraft to the Moon since then ("no point" is not a valid excuse - there are plenty of reasons to go there, if not only for the sheer prestige)?
The answer is simple: no human has ever set foot on the Moon. Stanley Kubrick's movie 2001: A Space Odyssey was released in 1968, one year before the first supposed manned moon landing. Now ain't that suspicious. Kubrick might have been involved and he might have not, but his movie shows that it was definitely possible to fake it.
The supposed Moon Landing could have been filmed in the Nevada Desert, which has a similar landscape to that of the moon:
http://www.dailymail.co.uk/news/article-2558673/Out-world-Interactive-map-reveals-Moon-like-craters-blasted-Nevada-desert-decades-nuclear-weapons-tests.html
Finally, we have the Van Allen radiation belts, which are highly dangerous for humans. NASA doesn't want to risk sending humans through them now, but supposedly did so 45 years ago, without any problems what so ever. It's utterly retarded to believe in this shit.
https://www.youtube.com/watch?v=sGXTF6bs1IU
>>8588087
Alright, but there were thousands of soviet scientists with every single one of their satellites and antennae or whatever pointing directly at us, making sure that we actually went to the moon.
If we faked it, they would be the first ones to let everyone know, and they didn't.
/sci/ may be smart, but is it ""street smart""?
>>8588063
Idk. Pretty sure a street would be smarter than most people on /sci/.
>>8588063
Nigga wat u mean tho
>>8588236
Can you plan and design a 6-lane interstate motorway?
If money did not matter which university would you attend for electrical engineering graduate studies in VLSI.
USC or UCLA
>>8587978
UCLA, because USC is actually full of entitled shits.
I'd flip a coin because it's the same shit. Alternatively go to the school with more stuff to do outside of studying.
>>8587978
>if money did not matter
Neither I'd be a NEET
I can make cat-girle with CRISPERcas9 ?
Theoretically, yes. Now whether or not you actually have the intelligence to create one, and not some deformed biomass that needs to be put out of its misery is a different story.
and I can create a slime-girl from blob ?
>>8587975
I doubt its about intelligence though.
A computer would be a million times better at simulating the effects of different genes on an organism.
Really as soon as we better understand how Crispr-Cas9 works our precision will be limited only by by our ability to simulate it.
Can society still exist if no one had emotions?
Emotion as in expressed emotion, or expressed emotion plus a total lack of empathy? Because you can still empathize with someone without expressing emotion or seeing them express emotion. If we still have empathy when we watch people die or get raped and have to deal with objectively bad consequences, we could still have society.
With total lack of empathy, we wouldn't have society.
>>8587955
>>8587934
A society of sociopaths would still be a society, although it would seem fairly alien to us. If you consider the notion that nation states behave like sociopaths, you can get some idea of how an empathy-less society could function along the bases of "balance of powers" and "mutual benefit".
>>8587976
no that stuff doesn't work on the fundamental level of a society. all animal societies work on cooperation. wolves fight for and enforce power but they still have empathy.
Emotion wise, i suppose schools of fish don't have emotion, just common reflexes. Now at a certain point of intelligence those accumulated common reflexes cannot help but be perceived as an emotion, and beyond that no society cannot exist without emotion.
Hey /sci/
doing revision and totally forgot how to do titration equations and can't find my notes for it, could you help me with this problem and what formula i need?
A water sample (50mL) was titrated with dilute sodium hydroxide to measure its
acidity, requiring 5.2mL of 0.01M to reach an end point. What is the acidity of the
water expressed in moles per litre, and milliequivalents per litre.
If you are looking for the molarity of the acid in the water it's v1m1=v2m2 but I'm unsure if that is what you want.
Using c1v1=c2v2 you can find the water concentration. Water does autoprolysis and is always in a constant equilibrium between H3O+ and OH-. The acidity, or pH, can found doing -log[H3O+]
That being said, it's a pretty stupid exercise since waters pH is always around 7
underage b&. Do your own homework and kindly fuck off. Thanks.
So, now that SpaceX has been given FAA approval for return to flight and the launch is scheduled for Jan 9, 822 GMT, what will we be seeing? A perfect launch? A massive fireball? Epic memes in the next 48 hours?
http://spaceflightnow.com/2017/01/06/engine-hotfire-test-completed-for-spacexs-first-launch-since-explosion/
http://spaceflightnow.com/2017/01/06/faa-signs-off-on-spacex-mishap-investigation/
Ofc we all now that this tread will derail into shounting, memeing and general shitposting, but it will still be a nice break from the FlatEarth and Global Warming treads that has filled this place the last weeks
>>8587625
Fly baby fly
>>8587625
Anyone have that picture of Bezos screaming, Musky musking and the Falcon landing?